rJ.A'PE XIV. 
I tcltojiecten siil)(|niiK[iu‘liiieatus, McCo'!, sp. 
1. United %al\’es ef tlie cardinal inarijinH, showiiu;- tlu' wide ga}> for the rece])tiun of the 
resiliinn, and th<‘ e(‘ntral eliondroplioi'e (S(>e PI. Xff, Figs, if, ,S). 
I )elto)ieeten w ingenensis, Eth.Jil. and Dun. 
Fig'. Cast of a Itd’t \a!\t‘, showing jiriinarv and secondary eosta'. 
Fig. d. similar hut smaller ^■al^■e. (This drawing has been canted too much to the right.) 
Fig. 1. Cast of tlie Hat right valve. 
Aviculo]i('cten tenuicolli.s, Dana, sp. 
I'dg. h. Intei'iial cast of a left \alve, with })riniary and secondary costau 
Fig. G. 
Fig. 7. 
Fig. 8. 
Aviculoiiecten Engelhardti, Eth.fil. and Dun. 
Tnternal cast ()f an uncompressed right valve, displaying traces of radiating costa^. 
Internal cast of the left valve of the same specimen. 
The united valves (Figs. G and 7) setm from above, showing almost ecjual convexity. 
Localises. 
Pig. 1. 
Pig. 2. 
Pig. 3. 
Pig. -I. 
Pig. 5. 
Pigs. 6-S. 
Gerringong. 
Portion 110, Parish "Wingen, County Brisbane. 
Portion 110, Parish ^^hngen, County' Brisbane. 
Portion 110, Parish Wingen, County Brisbane. 
Bavensfield. 
M.P. 5, Parish lleddon. 
